LED Display Screen Built in mic input with echo control and mic volume control for karaoke LED Illumination goes to the beat of the music can be turned on or off Playback Options: TF Memory Card (up to 64 GB), USB Thumb Drive (Up to 64 GB) Built-in limiter circuit eliminates ...LED Display Screen Built in mic input with echo control and mic volume control for karaoke LED Illumination goes to the beat of the music can be turned on or off Playback Options: TF Memory Card (up to 64 GB), USB Thumb Drive (Up to 64 GB) Built-in limiter circuit eliminates distortion Distortion free playback even at top volumes Bluetooth Version. 3.0 with Enhanced Data Rate for low latency Bluetooth playback Perfect for karaoke, house parties, camping, bedroom, kitchen and many other applications Playback Controls: Play, Pause, Skip Forward, Skip Back, Mic Volume, Music Volume, Echo, On/Off Switch Compatible with any Bluetooth devices such as Smartphone's, Tablets, MP3 Players, and more! Product Dimensions: 6.24 x 6.63 x 13.65 inches Product Weight: 3.82 Lbs.